Experimental Implementation of Direct Power Control for a SAPF with a PI Controller Tuned Using Grey Wolf Optimization

This paper proposes a solution incorporating a Shunt Active Power Filter (SAPF) to address current harmonics. To handle this system, the Direct Power Control (DPC) approach has been found as an effective strategy for controlling the active power filter configuration. To ensure optimal performance in managing the DC bus voltage, the PI controller is tweaked offline using the Grey Wolf Optimization (GWO) algorithm. This approach seeks to minimize the maximum overshoot and undershoot of DC link-voltage changes, decrease power ripples, and maintain low current distortion in line with IEEE Std. 519-2014. The implementation details for the GWO algorithm are disclosed. A pilot study was carried out to validate the comprehensive real-time system using the dSPACE 1104 card. The efficiency of the DPC-GWO approach is demonstrated by comparing its performance to that of the conventional method. The findings obtained at various phases demonstrate that the suggested system greatly improves Power Quality (PQ), providing higher performance and efficiency than previous techniques.